FILE PHOTO: Tennis - Australian Open - Melbourne Park, Melbourne, Australia, February 10, 2021 Switzerland's Stan Wawrinka in action during his second round match against Hungary's Marton Fucsovics REUTERS/Asanka Brendon Ratnayake/File Photo
(Reuters) - Three-times Grand Slam champion Stan Wawrinka faces a few weeks on the sidelines after having an operation on his left foot for a niggling problem, the Swiss said on Thursday.
"After having some problems in my left foot for a while, I have decided to do a small procedure on it," Wawrinka said in a tweet accompanied by a picture of him on a hospital bed.
